German Knorr-Bremse MG-35/36 light machine gun, caliber 7.92mm
Swedish Knorr-Bremse Kg. m/40 light machine gun, caliber 6.5mm
MG-35/36
Kg.
m/40
Caliber
7.92x57
6.5x55
Weight
10 kg
8.5 kg
Length
1280 mm
1257 mm
Barrel length
500 mm
685 mm
Feed
box magazine, 25 rounds
box magazine, 20
rounds
Rate of fire
500 rounds per
minute
480 rounds per
minute
In 1940 Sweden, feeling the lack of light machine guns then in
service, bought a manufacturing licence for a relatively unknown (and
hardly successful) light machine gun which was developed during the
mid-thirties by Hans Lauf at the German car brake manufacturing
company, Knorr-Bremse. The same weapon, chambered for 7.92 Mauser
ammunition, was produced for Knorr-Bremse by Steyr factory in Austria.
It was purchased in limited numbers as MG-35/36 by the German Waffen SS
but proved unreliable, and in Germany it was used mostly for training.
The “Swedish Knorr-Bremse” was produced by the Svenska Automatvapen AB
(SAV) company under licence. This weapon was offered to the Swedish
government and it was quickly adopted as the Kg m/40. Unlike most other
Swedish- or German-made machine guns, the m/40 was very unpopular among
soldiers, because of its poor reliability. About 5,000 m/40 machine
guns were delivered to the Swedish government between 1940 and 1943,
and most were quickly passed down from the Army to the Home Guard; soon
after the war the Kg m/40 were withdrawn from Home Guard service.
The Kg m/1940 light machine gun was developed from the German
Knorr-Bremse MG.35/36 light machine gun, but with certain changes, such
as a different caliber, omission of the selective-fire capability, and
a different magazine.
The Knorr-Bremse light machine gun is a gas operated,
air-cooled, automatic-only (Kg m/40) or selective-fire (MG 35/36)
weapon that fires from an open bolt. The long-stroke gas piston is
located above the barrel, in the long gas tube, which runs all the way
to the muzzle. The gas tube is connected to the bore of the barrel via
two curved gas channels. Barrel locking is achieved by a vertically
tilting bolt, which is linked to the gas piston rod by a swinging link.
The Knorr-Bremse light machine gun uses only a magazine feed
system. The feed is from the left side, with ejection to the right.
Swedish Knorr-Bremse m/40 machine guns used modified Swedish BAR (m/21
or m/37) magazines, while German Knorr-Bremse MG-35/36 used 25-round
"Dreyse" MG-13 magazines.
The Kg m/40 is fitted with a carrying handle and folding bipod, both
attached to the gas piston tube. Rear sights are of the aperture
(diopter) type on Swedish guns and of open, V-notch type on German guns.